Spring Lake Dam
Spring Lake Dam is a masonry dam located in Westchester County, New York, built in 1895. It carries a Significant hazard potential classification and has a poor condition assessment.
About Spring Lake Dam
The primary purpose of Spring Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Harrison Pond Sporting Society Inc (private). It impounds the Tr-mamaroneck River near East White Plains.
The dam stands 20 feet tall and stretches 250 feet across, creates a reservoir covering 3 acres, and has a maximum storage capacity of 20 acre-feet. Completed in 1895, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 02/07/2023.
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Location
| State | New York |
| County | Westchester |
| Nearest City | East White Plains |
| River/Stream | Tr-mamaroneck River |
| Coordinates | 41.03361, -73.74500 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 250 ft |
| Year Completed | 1895 (131 years old) |
Storage & Hydraulics
| NID Storage | 20 acre-ft |
| Max Storage | 20 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 3 acres |
| Max Discharge | 80 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | HARRISON POND SPORTING SOCIETY INC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 02/07/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY13959 |
| Federal ID | NY13959 |
| More Info | State Dam Safety Program |